Bring a large pan of salted water to a boil and cook the pasta or noodles until al dente (done but firm to the bite) or a minute less than the time on the packaging. Drain the pasta and set aside. In the meantime, start cooking the soup.
In a large stock pot, heat the oil or melt the butter over medium heat.
Add the onion, carrot, and celery and saute for around 5 minutes.
Add garlic, bay leaves, thyme, and vegan chicken pieces. Saute for another minute.
Add the vegan chicken broth and nutritional yeast. Stir, bring to a boil, and simmer for 10 minutes covered with a lid.
Remove the bay leaves and season the soup to taste with salt and pepper. Add the cooked pasta and chopped parsley. Stir through and serve.
Notes
Vegan chicken brothThere are a range of brands of vegan 'chicken' style broth available today. If you can't get your hand on any, use vegetable broth plus an added 1 teaspoon of each garlic powder and onion powder for some extra flavor.